What I Look for in a Merchant Statement

For many business owners, opening a merchant statement can feel overwhelming. Between the industry terminology, dozens of line items, and pages of fees, it's hard to know what actually matters.

The good news is that you don't need to understand every line of your statement to identify potential problems.

After reviewing thousands of merchant statements over the years, I've found there are a handful of items I check first. Most of the time, I can determine whether a statement deserves a deeper review in just a few minutes.

Here's my process.

1. Start with the Summary Page

The first page of your statement usually contains the information that tells the biggest story.

Here you'll typically find:

• Business name and address

• Statement period

• Merchant ID

• Total sales

• Third-party transactions

• Chargebacks

• Adjustments

• Total processing fees

One of the first calculations I perform is determining the effective rate.

This is simply your total processing fees divided by your total sales volume.

Your effective rate will naturally fluctuate from month to month, but it should remain relatively consistent over time. If you notice a significant increase from one statement to the next, that's often the first indication that something deserves a closer look.

2. Review Your Card Mix

As you continue through the statement, you'll typically find a summary showing the types of cards accepted during the month.

This section is more important than many business owners realize.

Different card types carry different interchange costs. For example:

• Debit cards generally cost less to process.

• Rewards credit cards typically cost more.

• American Express often has higher processing costs than Visa or Mastercard.

• Commercial and purchasing cards follow their own pricing structures.

Understanding your normal card mix helps explain why processing costs may fluctuate.

If one month includes a much higher percentage of American Express or premium rewards cards, it's perfectly normal for your effective rate to increase.

The key is recognizing why it changed.

3. Check Chargebacks and Adjustments

Most statements also include sections for:

• Chargebacks

• Adjustments

• Third-party transactions

These aren't necessarily areas where you'll find savings, but they should always be reviewed.

If a chargeback appears, make sure you're aware of it and respond within the required timeframe.

Likewise, if adjustments appear that you weren't expecting, they're worth investigating.

4. Identify Your Processor's Pricing

As you move into the fee section, you'll begin seeing the interchange categories for Visa, Mastercard, Discover, and American Express.

This section often looks intimidating because there may be dozens—or even hundreds—of different card descriptions.

Don't worry about memorizing them.

Instead, focus on finding your processor's pricing.

For example, a merchant might be paying paying:

• 25 basis points on sales volume

• $0.15 per authorization

Those two numbers are important because they represent the processor's markup.

Once you know what those numbers should be, you can quickly verify they remain consistent from month to month.

Unexpected changes deserve a conversation with your processor.

5. Review Account Fees

After the interchange sections, you'll usually find various account fees.

Monthly fees.

Network fees.

Program fees.

Compliance fees.

Some are completely legitimate.

Others may raise questions.

As a business owner, you don't need to know what every fee means.

You simply need to pay attention to changes.

If a new fee appears or an existing fee increases, ask why.

Transparency is important, and your processor should be able to clearly explain every charge on your statement.

6. Check for Interchange Markups

This is one of the most important—and most overlooked—parts of a merchant statement.

Interchange fees are established by Visa, Mastercard, Discover, and American Express. These costs are intended to be passed through to the merchant.

One of the easiest interchange categories to recognize is regulated debit.

Regulated debit transactions are charged at an interchange rate of 5 basis points (.0005) plus $0.22 per transaction.

Because this rate is standardized, it's also an easy way to verify whether interchange is being passed through correctly.

If your statement shows something different—such as 25 basis points plus $0.22—it may indicate that additional markup has been added to interchange itself.

While this isn't the industry standard, we've encountered it often enough that it's always worth checking.

Most business owners would never notice this, which is exactly why reviewing your statements periodically is so important.

Final Thoughts

Reviewing your merchant statement doesn't need to take an hour.

Once you know what to look for, a quick two- or three-minute review each month can help you identify unexpected pricing changes, new fees, unusual card mix shifts, or other issues before they become expensive problems.

This article intentionally keeps things simple. Topics like interchange optimization, Level III processing, and commercial card qualification deserve their own discussion because they can become much more technical.

If you ever suspect something doesn't look right—or simply want peace of mind—it may be worth having a payments professional review your statement.

At ProfitStack Group, we've reviewed thousands of merchant statements for businesses of every size. Sometimes we confirm that everything looks great. Other times we uncover opportunities to reduce costs, improve transaction qualification, or simply help business owners better understand one of their largest operating expenses.

The goal isn't just to lower rates. It's to make sure you're paying what you should—and nothing more.